Home / 81,146,580.44-111,994,299.88-51,379,995.20

Finding the Fourth Proportional to 81,146,580.44, 111,994,299.88 and 51,379,995.20

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Solution

The fourth proportional to 81,146,580.44, 111,994,299.88 and 51,379,995.20 is: 70,912,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,146,580.44 : 111,994,299.88 = 51,379,995.20 : x
  2. Step 2: Convert to fraction form
    81,146,580.44/111,994,299.88 = 51,379,995.20/x
  3. Step 3: Cross multiply
    81,146,580.44x = 111,994,299.88 × 51,379,995.20
  4. Step 4: Simplify right side
    81,146,580.44x = 5,754,266,589,573,339
  5. Step 5: Solve for x
    x = 5,754,266,589,573,339/81,146,580.44
  6. Step 6: Final answer
    x = 70,912,003.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.